This is because a sprinter runs short distances and not long distances like runners do.
Every two weeks increase your distance by 2 miles. Focus on strength training 3 times a week and increase intensity at each work-out until you are at a plateau. Continue there building endurance. Keep a record of your heart rate so you don't overdo it.
It tricks the cells of the intestines into secreting water. It tricks the cells of the intestines into secreting ions
